编写程序判断数字字符串是否为对称数

（如： 12321、2334、2345432为对称数，从左往右或从右往左看为相同数字）

public class DuiChenShu {

    public static void main(String[] args) {
        System.out.println(isDuiChenShu("12321"));
        System.out.println(isDuiChenShu("2332"));
        System.out.println(isDuiChenShu("234432"));
        System.out.println(isDuiChenShu("2344432"));
        System.out.println(isDuiChenShu("2345632"));
        System.out.println(isDuiChenShu("34563"));
    }

    public static boolean isDuiChenShu(String strInt) {
        int length = strInt.length();
//        System.out.println("length:" + length);

        if (length % 2 == 0) {
//            System.out.println("length % 2 == 0, strInt:" + strInt);
//            System.out.println("length/2=" + length / 2);
            for (int i = 0; i < length / 2; i++) {
//                System.out.println(strInt.charAt(i) + " vs " + strInt.charAt(length - 1 - i));
                if (!(strInt.charAt(i) == strInt.charAt(length - 1 - i)))
                    return false;
            }
        } else {
//            System.out.println("length % 2 <> 0, strInt:" + strInt);
//            System.out.println("(length -1)/2=" + (length - 1) / 2);
            for (int i = 0; i < (length - 1) / 2; i++) {
//                System.out.println(strInt.charAt(i) + " vs " + strInt.charAt(length - 1 - i));
                if (!(strInt.charAt(i) == strInt.charAt(length - 1 - i)))
                    return false;
            }
        }
        return true;
    }
}